Improvement in cultivators



A. RIGBY. CULTIVATOBF:

PatentedMay 2,1876.

. LNVEA TOR 000 M 14/ Att ray WITNESSES UNI ED STATES PATENT ,OFFICE.

ARTEMAS RIGBY, OF UIPER STILLWATER, MAINE.

IMPROVEMENT m cu LTIVATORSI Specification forming part of Letters PatentNo. 1 77,007, dated May 2. 1876; application filed To all whom it mayconcern:

Be it known that I, AR'IEMAS RIGBY, of Upper Stillwater, in the countyof Penobscot and State of Maine, have invented certain new and usefulImprovements in Gang-Plow and Pulverizer; and I do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form part of this specification.

The nature of my invention consists in the construction and arrangementof a gang-plow or pulverizer, as will be hereinafter more fully setforth.

In the annexed drawing, Figure 1 is a perspective View of my invention.Fig. 2 show furrowing-wings used with the frame of the gang-plow.

A represents the center beam to which the handles B B are attached. Onthe front end of the beam A are secured top and bottom plates 0 O, theupper one of which forms a clevis, as shown. Between the ends of theplates 0 G, on each side of the center beam, is pivoted a side beam, D,which is held at any suitable distance from the center beam by an arm,b, pivoted on the side beam and passing through a loop, a, on top of thecenter beam, and by which means the side beams can be adjusted out andin, as desired. Under the front end of the machine is a gagewheel, d,arranged in an adjustable curved frame, 0, and under the left-side beamis another similar wheel, d, also mounted in a curved adjustable frame,e. To the under March 11, 1876.

side of each beam A and D is secured a plow, E, constructed as shown,with points f projecting from the upper edge of the moldboard. From therear ends of the side beams D D project rods h, to the ends of which ishinged a harrow, G. One of these rods eonnects with the harrow by astaple, '5, to admit of the lateral adjustment of the side beams. Thebarrow is, by a chain, k, connected .with a hook on the round 7nconnecting the two handles B B, by which means the harrow may be raisedand lowered, as desired.

This machine will thoroughly pulverize the ground without turning theground entirely upside down, and is particularly adapted to spring use.The rich loam is not turned down deep, but left upon the surface.

For furrowing, the harrow and plows are removed, and furrow-win gs H Hare attached at the rear endsof the beams.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

.The combination, with the adjustable side beams of a gang-plow, of thehooked rods h h, harrow G, with elongated staplei, chain 70, and roundm, with its hook, substantially as and for the purposes herein setforth.

In testimony that I claim the foregoing as my own, I aflix my signaturein presence'of two witnesses.

ARTEMAS BIGBY.

Witnesses:

FRANK HAMBLEN, O. L. EVERT.

